04-30-2004 07:24 AM - edited 03-02-2019 03:23 PM
I don't trust the telco and am having the same exact problem with two sites. Both sites have 1721s with WIC-2A/S's. 1,000 1,000 byte PINGs has about 96% successful.
Config:
interface Serial0
description test circuit
bandwidth 64
no ip address
encapsulation frame-relay
logging event subif-link-status
logging event dlci-status-change
frame-relay lmi-type ansi
show controller serial 0
Interface Serial0
Hardware is PowerQUICC MPC860
DTE V.35 TX and RX clocks detected.
idb at 0x81842A84, driver data structure at 0x818453F0
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0000, Mask [SCCM]=0x001F, Status [SCCS]=0x06
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00365F80, Pending [CIPR]=0x00008004
Mask [CIMR]=0x48204002, In-srv [CISR]=0x00000000
Command register [CR]=0x6C0
Port A [PADIR]=0x5400, [PAPAR]=0xFFFF
[PAODR]=0x0000, [PADAT]=0x22FE
Port B [PBDIR]=0x0FC0F, [PBPAR]=0x0600E
[PBODR]=0x00000, [PBDAT]=0x1613C
Port C [PCDIR]=0x00C, [PCPAR]=0x000
[PCSO]=0xBE0, [PCDAT]=0x7CC, [PCINT]=0x000
Receive Ring
rmd(FF002430): status 9000 length 2E address 383F6C4
rmd(FF002438): status B000 length 40 address 38403C4
Transmit Ring
tmd(FF0024B0): status DC00 length 25C address 37041D4
tmd(FF0024B8): status 5C00 length 2D address 3876754
tmd(FF0024C0): status 5C00 length 2D address 3703E94
tmd(FF0024C8): status 5C00 length 2D address 3705554
tmd(FF0024D0): status 5C00 length 2D address 3704514
tmd(FF0024D8): status 5C00 length 2D address 3704854
tmd(FF0024E0): status 5C00 length 2D address 3704B94
tmd(FF0024E8): status 5C00 length 2D address 3877114
tmd(FF0024F0): status 5C00 length 2D address 3706254
tmd(FF0024F8): status 5C00 length 2E address 3703B54
tmd(FF002500): status 5C00 length 30 address 3702694
tmd(FF002508): status 5C00 length 2C address 3701A14
tmd(FF002510): status 5C00 length 2E address 37036D4
tmd(FF002518): status 5C00 length A9 address 387CA14
tmd(FF002520): status 5C00 length 2C address 3875214
tmd(FF002528): status 7C00 length 2C address 37022D4
tx_limited=1(2)
SCC GENERAL PARAMETER RAM (at 0xFF003C00)
Rx BD Base [RBASE]=0x2430, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x24B0, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x18008440, BD Ptr [RBPTR]=0x2438
Tx State [TSTATE]=0x18800511, BD Ptr [TBPTR]=0x24B0
SCC HDLC PARAMETER RAM (at 0xFF003C38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=332, Aborts [ABTSC]=10, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1608
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=62102
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000
buffer size 1524
PowerQUICC SCC specific errors:
10 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts
Could this be an issue where the circuit being provided is 56 kbps and not 64 kbps?
The local telco reports that the circuit test clean. The frame relay carrier does not see any errors. Only getting input errors on the remote site (site with 64 kbps circuit). Host site with T1s do not report any errors.
Any help would be appreciated!
04-30-2004 09:00 AM
What is the CIR for your circuit? You may have a 64K circuit but only has a CIR of 32K. You may be able to get the CIR by issuing the "show frame-relay map" command. Based upon the CIR, that may explain you ping failures if you are exceeding your CIR and the carrier is discarding frames due to congestion. You should be able to see if you are exceeding your CIR by looking at the output from the command "show frame-relay pvc". Pay attention to the "in DE pkts" and "out DE pkts" fields. If these counters increment, then your are going above what you are guaranteed through your CIR and will have traffic subject to discard during congestion periods on the frame-relay infrastructure.
05-06-2004 02:45 PM
The Frame Relay service is being provided by Sprint Link. They have no specified CIR. With CRC and Frame errors at the physical layer I do not think this is a CIR issue. I could be wrong. I am working with Sprint and the PTT to troubleshoot the issue.
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